Question

Which on of the following is a most popular and commonly used pointing device?
a•Light pen
b. Mouse
c•Track ball
d. Joystick
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Answer 1

Answer:

option b................

Answer 2

Answer:

a. Light pen

Explanation:

For class, office or any type of formal meeting light is used mostly. Because :

1. It is easier to use.
2. It needs no wire.
3. You can use it in any kind of electronic device.